title: Dehydrogenation tuning of ammine borohydrides using double-metal cations.
abstract: The strategy of using double-cations to tune the temperature and purity of dehydrogenation of ammine borohydrides is reported. The first double-cation ammine borohydride, Li(2)Al(BH(4))(5)·6NH(3), which forms a novel structure with ordered arrangement of Al(NH(3))(6)(3+) ammine complexes and Li(2)(BH(4))(5)(3-) complex anions, is found to release over 10.0 wt % hydrogen below 120 °C with favorable kinetics and high H-purity (>99%).
authors.affiliation: Department of Materials Science, Fudan University, Shanghai 200433, China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Guo
authors.forename: Hui
authors.initials: H
authors.lastname: Wu
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Xuebin
authors.initials: X
authors.lastname: Yu
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D000641:Ammonia / Q000737:chemistry*; D001894:Borohydrides / Q000737:chemistry*; D002412:Cations / Q000737:chemistry; D006865:Hydrogenation; D008094:Lithium / Q000737:chemistry*; D008958:Models, Molecular
chemical_list: D001894:Borohydrides; D002412:Cations; D000641:Ammonia; D008094:Lithium; D000535:Aluminum